NO. 1498. 



MAMifALS OF BANK A AND BILLITON—LYON. 



603 



the same color pattern as the adults. Tupaia discolor is ap[)arentl3" a 

 very distinct species though related to fer^rug Inert, but differs sharply, 

 as mentioned above. Mr. Gerrit S. Miller, jr., who compared speci- 

 mens of it with forms in the British Museum, noted that externall}^ it 

 is much like /ii/poc/wy.sa, but upper parts distinctly more red anteriorly 

 and more gray posteriorly, the two regions forming- a noticeable con- 

 trast of which there is none in hypoclirysa. Underparts nnich lighter 

 than in hypochrym, especially on posterior half of belly and inner 

 surface of hind legs. In It ypochrysa the inside of hind leg is so dark 

 that it forms no noticeable contrast with the outer side, while in dis- 

 color the contrast is sharp and very conspicuous. The same differences 

 arc found in both species, but to a less degree in the front legs. 

 Shoulder stripe practically absent in Jq/pocJirysti, noticeable though 

 small in discolor. Tail as in hypocJiryaa, but not quite as long haired, 

 and longitudinal lines on underside less distinct. Skull and teeth 

 noticeably smaller than in Injpochvyxa. 



Exlernrd and cranial menaurenienls of tree shrews from Banka and Billiton. 



«.\lcoholic. 



6 Skin and skull. 



c Type. 



rf Skull only. 



« Young. 



CYNOPTERUS BRACHYOTIS (MuUer). 



Seven specimens from Banka and eighteen from Billiton. I can find 

 no differences between these and specimens of Cynopterus Irrachyotts 

 from Borneo, the type locality. (See table of measurements, page 604.) 



